3.0.13 release preparations #7276

Version 3.0.13 - June 1st, 2021 (Maven)

JavaDocs

⚠️ RxJava is now signed with a new private key. The new public key fingerprint is 1D9AA7F9E1E2824728B8CD1794B291AEF984A085.

Documentation

• Fix wording of *OnSubscribe interfaces (3.x: Javadoc: Fix wording of *OnSubscribe interfaces #7274)

Other

• Mitigated the security risks caused by the Codecov backdoor (Codecov.io compromise; secrets and access tokens have to be renewed #7237).
• Improve the build process (Remove custom Gradle garbage collection tasks #7225, 3.x: Remove fixPom method from build.gradle #7253, 3.x: Update Gradle task dependencies to remove dependsOn 'build' task #7255, 3.x: Remove redundant addition of JMH to classpath #7257, 3.x: Remove Javadoc not failing on error #7258, 3.x: Move Gradle properties into gradle.properties file #7260, 3.x: Remove toolVersion for jacoco and checkstyle #7261, 3.x: Rename workflow tasks #7262, 3.x: Updated javadocCleanup to use logger and remove semi-colons #7264, 3.x: Consolidate test logging #7263)
• Upgrade to Gradle 7.0 (3.x: Gradle wrapper 7 0 #7259)